From e8a94eab232c3b8297a9216b8c8d2a6bdb7656fb Mon Sep 17 00:00:00 2001
From: Saravanakumar Arumugam <sarumuga@redhat.com>
Date: Fri, 8 Jul 2016 19:10:45 +0530
Subject: [PATCH 397/406] geo-rep: filter out xtime attribute during getxattr
georep gsyncd's xtime needs to filtered irrespective
of any process access.
This way, we can avoid (unnecessarily)syncing xtime attribute
to slave, which may raise permission denied errors.
test case modified to check for xtime xattr only in backend.
Back port of>
>Change-Id: I2390b703048d5cc747d91fa2ae884dc55de58669
>BUG: 1353952
>Signed-off-by: Saravanakumar Arumugam <sarumuga@redhat.com>
>Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
>Reviewed-on: https://review.gluster.org/14880
>Smoke: Gluster Build System <jenkins@build.gluster.org>
>Reviewed-by: Kotresh HR <khiremat@redhat.com>
>Tested-by: Kotresh HR <khiremat@redhat.com>
>NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
>CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
>Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Change-Id: Ibdee6f3093648a7e0fb1e2b6be8172e604ab657f
BUG: 1327045
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/103428
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
---
tests/basic/geo-replication/marker-xattrs.t | 17 ++++-----
tests/bugs/geo-replication/bug-1296496.t | 3 +-
tests/bugs/geo-replication/bug-877293.t | 4 +--
xlators/storage/posix/src/posix-helpers.c | 53 ++++++++++++++++++++++++++++-
xlators/storage/posix/src/posix.c | 15 ++++----
xlators/storage/posix/src/posix.h | 3 +-
6 files changed, 73 insertions(+), 22 deletions(-)
diff --git a/tests/basic/geo-replication/marker-xattrs.t b/tests/basic/geo-replication/marker-xattrs.t
index dd5483d..e5b26a6 100755
--- a/tests/basic/geo-replication/marker-xattrs.t
+++ b/tests/basic/geo-replication/marker-xattrs.t
@@ -24,11 +24,11 @@ TEST touch $M0
vol_uuid=$(get_volume_mark $M1)
xtime=trusted.glusterfs.$vol_uuid.xtime
-TEST "getfattr -n $xtime $M1 | grep -q ${xtime}="
+TEST "getfattr -n $xtime $B0/${V0}-1 | grep -q ${xtime}="
TEST kill_brick $V0 $H0 $B0/${V0}-0
-TEST "getfattr -n $xtime $M1 | grep -q ${xtime}="
+TEST "getfattr -n $xtime $B0/${V0}-1 | grep -q ${xtime}="
TEST getfattr -d -m. -e hex $M1
EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M0
@@ -61,13 +61,13 @@ vol_uuid=$(get_volume_mark $M1)
xtime=trusted.glusterfs.$vol_uuid.xtime
stime=trusted.glusterfs.$vol_uuid.stime
-stime_val=$(getfattr -e hex -n $xtime $M1 | grep ${xtime}= | cut -f2 -d'=')
+stime_val=$(getfattr -e hex -n $xtime $B0/${V0}-1 | grep ${xtime}= | cut -f2 -d'=')
TEST "setfattr -n $stime -v $stime_val $B0/${V0}-1"
-TEST "getfattr -n $xtime $M1 | grep -q ${xtime}="
+TEST "getfattr -n $xtime $B0/${V0}-1 | grep -q ${xtime}="
TEST kill_brick $V0 $H0 $B0/${V0}-0
-TEST "getfattr -n $xtime $M1 | grep -q ${xtime}="
+TEST "getfattr -n $xtime $B0/${V0}-1 | grep -q ${xtime}="
TEST "getfattr -n $stime $M1 | grep -q ${stime}="
TEST getfattr -d -m. -e hex $M1
@@ -98,12 +98,9 @@ TEST touch $M0
vol_uuid=$(get_volume_mark $M1)
xtime=trusted.glusterfs.$vol_uuid.xtime
-TEST "getfattr -n $xtime $M1 | grep -q ${xtime}="
+TEST "getfattr -n $xtime $B0/${V0}-0 | grep -q ${xtime}="
-TEST kill_brick $V0 $H0 $B0/${V0}-0
-
-#Stripe doesn't tolerate ENOTCONN
-TEST ! "getfattr -n $xtime $M1 | grep -q ${xtime}="
+TEST "getfattr -n $xtime $B0/${V0}-1 | grep -q ${xtime}="
EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M0
EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M1
diff --git a/tests/bugs/geo-replication/bug-1296496.t b/tests/bugs/geo-replication/bug-1296496.t
index 703fda6..a157be7 100644
--- a/tests/bugs/geo-replication/bug-1296496.t
+++ b/tests/bugs/geo-replication/bug-1296496.t
@@ -29,7 +29,8 @@ xtime="trusted.glusterfs.$vol_uuid.xtime"
#TEST xtime
TEST ! getfattr -n $xtime $M0
-TEST getfattr -n $xtime $M1
+TEST getfattr -n $xtime $B0/${V0}-0
+TEST getfattr -n $xtime $B0/${V0}-1
#TEST stime
slave_uuid=$(uuidgen)
diff --git a/tests/bugs/geo-replication/bug-877293.t b/tests/bugs/geo-replication/bug-877293.t
index 542774a..c5205e8 100755
--- a/tests/bugs/geo-replication/bug-877293.t
+++ b/tests/bugs/geo-replication/bug-877293.t
@@ -26,11 +26,11 @@ TEST touch $M0
vol_uuid=`getfattr -n trusted.glusterfs.volume-mark -ehex $M1 | sed -n 's/^trusted.glusterfs.volume-mark=0x//p' | cut -b5-36 | sed 's/\([a-f0-9]\{8\}\)\([a-f0-9]\{4\}\)\([a-f0-9]\{4\}\)\([a-f0-9]\{4\}\)/\1-\2-\3-\4-/'`
xtime=trusted.glusterfs.$vol_uuid.xtime
-TEST "getfattr -n $xtime $M1 | grep -q ${xtime}="
+TEST "getfattr -n $xtime $B0/${V0}-0 | grep -q ${xtime}="
TEST kill_brick $V0 $H0 $B0/${V0}-0
-TEST "getfattr -n $xtime $M1 | grep -q ${xtime}="
+TEST "getfattr -n $xtime $B0/${V0}-1 | grep -q ${xtime}="
EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M0
EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M1
diff --git a/xlators/storage/posix/src/posix-helpers.c b/xlators/storage/posix/src/posix-helpers.c
index 24b8bdd..dd6791c 100644
--- a/xlators/storage/posix/src/posix-helpers.c
+++ b/xlators/storage/posix/src/posix-helpers.c
@@ -96,6 +96,57 @@ out:
return flag;
}
+int
+posix_handle_georep_xattrs (call_frame_t *frame, const char *name,
+ int *op_errno, gf_boolean_t is_getxattr)
+{
+
+ int i = 0;
+ int ret = 0;
+ int pid = 1;
+ gf_boolean_t filter_xattr = _gf_true;
+ static const char *georep_xattr[] = { "*.glusterfs.*.stime",
+ "*.glusterfs.*.xtime",
+ "*.glusterfs.*.entry_stime",
+ NULL
+ };
+ if (frame && frame->root) {
+ pid = frame->root->pid;
+ }
+
+ if (!name) {
+ /* No need to do anything here */
+ ret = 0;
+ goto out;
+ }
+
+ if (pid == GF_CLIENT_PID_GSYNCD && is_getxattr) {
+ filter_xattr = _gf_false;
+
+ /* getxattr from gsyncd process should return all the
+ * internal xattr. In other cases ignore such xattrs
+ */
+ }
+
+ for (i = 0; filter_xattr && georep_xattr[i]; i++) {
+ if (fnmatch (georep_xattr[i] , name, FNM_PERIOD) == 0) {
+ ret = -1;
+ if (op_errno)
+ *op_errno = ENOATTR;
+
+ gf_msg_debug ("posix", ENOATTR,
+ "Ignoring the key %s as an internal "
+ "xattrs.", name);
+ goto out;
+ }
+ }
+
+ ret = 0;
+out:
+ return ret;
+}
+
+
static gf_boolean_t
_is_in_array (char **str_array, char *str)
{
@@ -729,7 +780,7 @@ _handle_list_xattr (dict_t *xattr_req, const char *real_path, int fdnum,
if (posix_special_xattr (marker_xattrs, key))
goto next;
- if (!fnmatch (GF_XATTR_STIME_PATTERN, key, 0))
+ if (posix_handle_georep_xattrs (NULL, key, NULL, _gf_false))
goto next;
if (dict_get (filler->xattr, key))
diff --git a/xlators/storage/posix/src/posix.c b/xlators/storage/posix/src/posix.c
index 207c7fd..ed70782 100644
--- a/xlators/storage/posix/src/posix.c
+++ b/xlators/storage/posix/src/posix.c
@@ -4313,11 +4313,10 @@ posix_getxattr (call_frame_t *frame, xlator_t *this,
op_ret = -1;
priv = this->private;
- /* Allow access to stime xattr only to geo-rep worker */
- if (frame->root->pid != GF_CLIENT_PID_GSYNCD && name &&
- fnmatch ("*.glusterfs.*.stime", name, FNM_PERIOD) == 0) {
+ ret = posix_handle_georep_xattrs (frame, name, &op_errno, _gf_true);
+ if (ret == -1) {
op_ret = -1;
- op_errno = ENOATTR;
+ /* errno should be set from the above function*/
goto out;
}
@@ -4629,9 +4628,11 @@ posix_getxattr (call_frame_t *frame, xlator_t *this,
remaining_size = size;
list_offset = 0;
while (remaining_size > 0) {
- strcpy (keybuffer, list + list_offset);
- if (frame->root->pid != GF_CLIENT_PID_GSYNCD &&
- fnmatch ("*.glusterfs.*.stime", keybuffer, FNM_PERIOD) == 0)
+ strncpy (keybuffer, list + list_offset, sizeof(keybuffer));
+
+ ret = posix_handle_georep_xattrs (frame, keybuffer, NULL,
+ _gf_false);
+ if (ret == -1)
goto ignore;
size = sys_lgetxattr (real_path, keybuffer, NULL, 0);
diff --git a/xlators/storage/posix/src/posix.h b/xlators/storage/posix/src/posix.h
index 87f91e5..6fd32c1 100644
--- a/xlators/storage/posix/src/posix.h
+++ b/xlators/storage/posix/src/posix.h
@@ -259,7 +259,8 @@ int
posix_get_ancestry (xlator_t *this, inode_t *leaf_inode,
gf_dirent_t *head, char **path, int type, int32_t *op_errno,
dict_t *xdata);
-
+int
+posix_handle_georep_xattrs (call_frame_t *, const char *, int *, gf_boolean_t);
void
posix_gfid_unset (xlator_t *this, dict_t *xdata);
--
1.8.3.1